Sure, but why do we have to conflate "disagreement" with "undesirability"? I'm old enough to remember a time when we could disagree about things without pretending our opponents are Hitler reincarnate. I often find myself wanting to spend more time with people I disagree with to understand their perspectives better or to help them see that we probably have more common ground than they may realize or even just to do my part to heal our culture by rejecting the notion that it's necessary, good, or morally acceptable to hate people we disagree with.

> Sure, but why do we have to conflate "disagreement" with "undesirability"?

Because most people find being challenged very tiresome and uncomfortable. People who are high in openness actually enjoy being challenged, but they are a minority (and it's definitely a spectrum).

I believe this, but there was also a time when it was considered a virtue to be more open-minded--calling someone "a literal Nazi" over some minor ideological disagreement (and then calling for them to be fired, attacked, etc) would have been roundly and correctly criticized. Now it seems like it's considered virtuous to exaggerate differences, police ideas, etc.